The Crypto24 ransomware group is a little-known and emerging threat actor that started claiming victims in 2025, operating as part of the expanding landscape of smaller ransomware operations. Public information about Crypto24 remains limited.

Crypto24 employs data encryption and extortion tactics, with some campaigns indicating elements of double extortion, where victims are threatened with data leaks in addition to system lockouts. Initial access is believed to occur through phishing campaigns, compromised credentials, or exploitation of exposed services, consistent with common ransomware entry points.

Technically, Crypto24 relies on standard ransomware tooling, including strong encryption and efforts to disable backups and security controls prior to execution.